Resonant rotating transformer

ABSTRACT

A resonant rotating transformer design increases efficiency while maintaining the small dimensions of devices in which the transformer is used. The inventive concept lacks a ferrite or other metal core and instead uses at least two secondary winding members positioned near a primary winding member on a non-magnetic base. The lack of a ferrite core increases the overall lifespan and efficiency of the resonant rotating transformer while permitting the resonant rotating transformer&#39;s small dimensions of substantially under 100 mm, as well as resistance to stress and vibrational loads. The resonant rotating transformer is optimized for holographic fan displays but is useful for other electronic devices. Variations of sequential and parallel alignment for elements of the at least two secondary winding members, as well as various winding arrangements, enable changes of properties of the resonant rotating transformer.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present patent application claims priority to U.S. provisional application 62/957,509 filed on Jan. 6, 2020 and U.S. provisional application 62/957,534 filed on Jan. 6, 2020.

FIELD OF THE INVENTION

The claimed resonant rotating transformer refers to electrical engineering, and more specifically to resonant transformers for contactless transmission of electricity to rotating elements, which can be present, in particular, in radars, in surveillance video cameras, in robotic manipulators, and in display devices such as a holographic fan display.

BACKGROUND

There are a number of solutions for transformers. Most of these solutions have a metal conductive core and include primary and secondary windings or coils. When the windings on the primary windings or coils exceed those of the secondary windings or coils, the voltage steps down. When the winding on the primary winding or coils are less than those of the secondary windings or coils, the voltage steps up. The existing design of transformers usually include a ferrite core. The primary and secondary windings are disposed inside the ferrite core. Such transformers are used for display devices for such devices as holographic fans. Known devices without a ferrite core transmit energy poorly, and the presence of a ferrite core increases the dimensions of the transformer and reduces the reliability of devices. Therefore, there is a need in the market for an improved transformer for transmitting and changing the voltage of electricity.

SUMMARY OF THE INVENTION

To solve the existing problems of current solutions, a new transformer design is proposed that increases efficiency while maintaining the small dimensions of the device in which the transformer is used. Small, as defined for this inventive concept, is a transformer with dimensions that would substantially fit within a cube of 100 mm. The inventive concept lacks, by design, a ferrite core. The lack of a ferrite core increases the overall lifespan and efficiency of the inventive concept while permitting the inventive concept's small dimensions, as well as resistance to stress and vibrational loads.

The inventive concept is a resonant rotating transformer that lacks a ferrite or other metal core. The resonant rotating transformer has a non-magnetic base on which is disposed a primary winding member substantially between an at least two secondary winding members, the secondary winding members also disposed on the non-magnetic base. A non-conductive frame assembly could also be used in some embodiments. In one embodiment, the primary winding member is non-rotatable and the at least two secondary winding members are rotatable. In another embodiment, the primary winding member and the at least two secondary winding members are rotatable.

In one embodiment of the resonant rotating transformer, the primary winding member is wrapped on the non-magnetic base. In another embodiment of the resonant rotating transformer, the at least one secondary winding member is wrapped on the non-magnetic base. In these embodiments, the non-magnetic base may be substantially cylindrical. In these embodiments, wherein the at least two secondary winding members are wound on substantially cylindrical portions of the non-magnetic base, the cylindrical portions may be of different diameters.

In one embodiment of the resonant rotating transformer, at least two of the at least two secondary winding members are operably coupled sequentially. In another embodiment of the resonant rotating transformer, at least two of the at least two secondary winding members are operably coupled in parallel. In these embodiments, at least one of the at least two secondary winding members may be operably coupled in parallel or sequentially.

In one embodiment of the resonant rotating transformer, the turns of two windings of at least one of the at least two secondary winding members are arranged as a revolution of a first winding reeled in the revolution of at least one second winding.

In one embodiment of the resonant rotating transformer, the substantially cylindrical portions of the non-magnetic base are substantially hollow. Alternatively, just the substantially cylindrical portion of the non-magnetic base for the primary winding is substantially hollow.

In one embodiment where the at least one of the at least two secondary winding members may be operably coupled in parallel or sequentially, the winding portions of at least one of the at least one secondary winding members are embedded in each other. In this embodiment, each winding portion of the primary winding member and the at least two secondary winding members may be located on a separate non-magnetic base.

The inventive concept was conceived for holographic fan displays but is not limited to holographic fan displays. Another use case example of implementing the inventive concept suggests using the aforementioned transformer design in radars, video cameras, and in other display devices.

One embodiment of the resonant rotating transformer has a non-magnetic base, the primary winding member being positioned on the non-magnetic base substantially between at least two secondary winding members being also positioned on the non-magnetic base, wherein the primary winding or the secondary windings work as a stator, and wherein the resonant rotating transformer is coreless. The resonant rotating transformer may have a base that is a flat base supporting the transformer. The resonant rotating transformer may have the primary windings as the stator. The resonant rotating transformer may have the secondary windings as the stator. The resonant rotating transformer may have the at least two secondary winding members operably coupled sequentially. The resonant rotating transformer may have the at least two secondary winding members operably coupled in parallel. The resonant rotating transformer may have substantially one axis of symmetry, meaning the resonant rotating transformer can employ barrel-type and x-type spools. The resonant rotating transformer may have the primary winding member wrapped on a part of the non-magnetic base. The resonant rotating transformer may have at least one secondary winding member wrapped on a part of the non-magnetic base and may further have the part of the non-magnetic base substantially cylindrical. The resonant rotating transformer may have at least one secondary winding consisting of a first and a second portion of the secondary winding, wherein the first and the second portions alternate each other in the winding. The resonant rotating transformer may have the windings implemented in the form of a strip conductor of a width equal to the height of the transformer.

It would be advantageous to have a resonant rotating transformer that is portable.

The inventive concept advantageously fills the aforementioned deficiencies by providing a resonant rotating transformer that is convenient for small electronic devices such as, but not limited to, a holographic fan display.

Among other things, it is an advantage of the resonant rotating transformer to provide a transformer without a ferrite core that does not suffer from problems or deficiencies associated with prior solutions.

The inventive concept now will be described more fully hereinafter with reference to the accompanying drawings, which are intended to be read in conjunction with both this summary, the detailed description and any preferred and/or particular embodiments specifically discussed or otherwise disclosed. This inventive concept may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of illustration only and so that this disclosure will be thorough, complete, and will fully convey the full scope of the inventive concept to those skilled in the art.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A illustrates the general view of the ferrite transformer.

FIG. 1B illustrates the overall view without a ferrite transformer.

FIG. 2A-2E illustrates the example of the implementation of a transformer with two secondary or two primary windings each containing one winding.

FIG. 3A-3F illustrates an example of a transformer implementation in which each of the secondary or primary windings contain two windings.

FIG. 4 illustrates the overall look of the holographic fan display device.

FIG. 5 illustrates the flat base supporting the transformer.

DETAILED DESCRIPTION OF THE INVENTION

Following are more detailed descriptions of various related concepts related to, and embodiments of, methods and apparatus according to the present disclosure. It should be appreciated that various aspects of the subject matter introduced above and discussed in greater detail below may be implemented in any of numerous ways, as the subject matter is not limited to any particular manner of implementation. Examples of specific implementations and applications are provided primarily for illustrative purposes.

The inventive concept is a resonant rotating transformer optimized for holographic fan displays and is useful for other electronic devices and applications.

As illustrated FIGS. 1-5, the resonant rotating transformer 10 has a non-magnetic base 20, the primary winding member 101 being positioned on the non-magnetic base 20 substantially between at least two secondary winding members 201, 301 being also positioned on the non-magnetic base 20, wherein the primary winding 101 or the secondary windings 201, 301 work as a stator, and wherein the resonant rotating transformer 10 is coreless. The resonant rotating transformer 10 may have a non-magnetic base 20 that is, with reference to FIG. 5, a flat base supporting the transformer 500. The resonant rotating transformer 10 may have the primary windings 101 as the stator. The resonant rotating transformer 10 may have the secondary windings 201, 301 as the stator. The resonant rotating transformer 10 may have the at least two secondary winding members 201, 301 operably coupled sequentially. The resonant rotating transformer 10 may have the at least two secondary winding members 201, 301 are operably coupled in parallel. The resonant rotating transformer 10 may have substantially one axis of symmetry. The resonant rotating transformer 10 may have the primary winding member 101 wrapped on a part of the non-magnetic base 20. The resonant rotating transformer 10 may have at least one secondary winding member 201, 301 wrapped on a part of the non-magnetic base 20 and may further have the part of the non-magnetic base 20 substantially cylindrical. The resonant rotating transformer 10 may have at least one secondary winding 201, 301 consisting of a first and a second portion of the secondary winding 201, 301, wherein the first and the second portions alternate each other in the winding.

As illustrated in FIG. 2A-FIG. 2C, in one implementation option, the resonant rotating transformer 10 contains two parts, a rotor part 30 and stator or stem part 40. The primary winding member 101 is located between the at least two secondary windings 201, 301. In this example, the primary winding member 101 or the at least two secondary windings 201, 301 can be the rotor part 30 and stator or stem part 40. There are no binders/connecting elements between the stem or stator part 40 and rotary part 30 and there is a gap necessary for the rotation of one part relative to the other.

The scheme with the location of the primary winding 101 between the at least two secondary windings 201, 301 allows the inventive concept to work without a ferrite core when transferring large capacities with usefully high efficiency recognized by one of ordinary skill in the art as needed to run a device such as a holographic fan display. Also, the increase in such efficiency is facilitated by the division of windings into several parts, which allows the inventive concept to employ thinner and longer windings, thereby increasing the operable area of the conductor, which is in maximum proximity to the source of radiation: the primary winding 101. The system with the proposed resonant rotating transformer 10 in one preferred embodiment is usually the following dimensions: substantially 50 mm in diameter and 20 mm in height; at the same time, the resonant rotating transformer 10 provides about 120 W power at the efficiency of the system (i.e. transformer as part of the display device) up to substantially 93%.

Both parts of the resonant rotating transformer 10 can be performed with the ability to rotate. This implementation example is, required when the stator part of the resonant rotating transformer 10 is installed on a rotation element, such as a platform.

The primary winding 101 and secondary windings 201, 301 can be wound on frames, which may be performed in the form of hollow cylinders of different diameters.

FIG. 2D, schematically illustrates the principle of the declared resonant rotating transformer 10. As seen in the direction of magnetic induction lines, due to the proposed location of the winding, in particular, the addition of the primary winding 101 are additional at least two secondary windings 201 or 301, a smaller part of the magnetic induction is lost without passing through the at least one secondary winding, 201, 310, which allows an increase in the overall efficiency.

FIG. 3A-3D presents an example in which each of the at least one secondary windings 201, 301 of the rotary part 30 consists of two windings 201, 202 and 301, 302. In this example, the primary winding member 101 or the at least two secondary windings 201, 301 can be the rotor part 30 and stator or stem part 40.

With an equal number of turns on the primary winding 101, and at least two secondary windings 201, 301 of the resonant rotating transformer 10, resonant rotating transformer 10 on FIG. 2B is different from the resonant rotating transformer 10 on FIG. 2C. On the release of the resonant rotating transformer 10 on FIG. 2C there is a double voltage regarding the resonant rotating transformer 10 on FIG. 2B. Since the resonant rotating transformer 10 on FIG. 2C contains four straightening elements 60, the efficiency of such a resonant rotating transformer 10 will be less than the transformer on FIG. 2B.

With an equal number of turns on the primary winding 101 and at least two secondary windings 201, 301 of the resonant rotating transformer 10, resonant rotating transformer 10 on FIG. 3C is different from the resonant rotating transformer 10 on FIG. 3D by the fact that the resonant rotating transformer exit on FIG. 3D there is a double voltage regarding the resonant rotating transformer 10 on FIG. 3C. Since the resonant rotating transformer 10 on FIG. 3D contains four straightening elements 60, the efficiency of such a resonant rotating transformer 10 will be less than the resonant rotating transformer 10 on FIG. 3B.

Resonant rotating transformers 10 on FIG. 3B and 3C differ only in the way of implementation of at least two secondary windings 201, 301. Both resonant rotating transformers 10 are equivalent in their efficiency.

Windings on the non-magnetic base 20 in such a scheme of implementation can be carried out in a variety of ways, for example, winding only the primary winding 101, or winding only one of the at least two secondary windings, i.e. secondary winding 201, secondary winding 202 or secondary winding 301, secondary winding 302.

Twists of windings secondary winding 201, secondary winding 202 and secondary winding 301, secondary winding 302 can be located in such a way that next to the revolution of one winding (e.g., 201) winds are other windings e.g., secondary winding 202, or secondary winding 302.

Such resonant rotating transformers 10 can be used where different types of devices rotate at different speeds, and these devices need to provide long-term power with large enough speeds. Also, the proposed resonant rotating transformer design 10 is applicable in devices where battery power is not applicable due to the short lifespan, and where the rotating contact device does not fit in its lifespan, rotation frequency, and environmental factors.

FIG. 4 is an example of the general type of display device represented by a holographic display fan 400, which proposes the use of the design of the declared resonant rotating transformer 10. The holographic display fan 400, in particular, can be performed in the form of a device that works on the principle of visual inertness, and contains at least one rotating blade 410 on which light sources 420 (e.g. LEDs) are located, and a processor unit that can process images and send the right signals at the right time to each of the light sources so that the device displays one single picture or video.

FIG. 5 illustrates an embodiment where a flat base 500 supports the resonant rotating transformer 10.

FIGS. 1-5 further illustrate that the inventive concept is a resonant rotating transformer 10 that lacks a ferrite or other metal core. The resonant rotating transformer 10 has a non-magnetic base 20 on which is disposed a primary winding member 101 substantially between an at least two secondary winding members 201, 301. The at least two secondary winding members 201, 301 also disposed on the non-magnetic base 20. In one embodiment, the primary winding member 101 is non-rotatable and the at least two secondary winding members 201, 301 are rotatable. In another embodiment, the primary winding member 101 and the at least two secondary winding members 201, 301 are rotatable.

In one embodiment of the resonant rotating transformer 10, the primary winding member 101 is wrapped on the non-magnetic base 20. In another embodiment of the resonant rotating transformer 10, the at least two secondary winding members 201, 301 are wrapped on the non-magnetic base 20. In these embodiments, the non-magnetic base 20 may be substantially cylindrical. In these embodiments, wherein the at least two secondary winding members 201, 301 are wound on substantially cylindrical portions of the non-magnetic base 25 the cylindrical portions 25 may be of different diameters.

In one embodiment of the resonant rotating transformer 10, at least two of the at least two secondary winding members 201, 301 are operably coupled sequentially. In another embodiment of the resonant rotating transformer 10, at least two of the at least two secondary winding members 201, 301 are operably coupled in parallel. In these embodiments, at least one of the at least two secondary winding members 201, 301 may be operably coupled to each other in parallel or sequentially.

In one embodiment of the resonant rotating transformer 10, the turns of two windings of at least one of the at least two secondary winding members 201, 301 are arranged as a revolution of a first winding reeled in the revolution of at least one second winding.

In one embodiment of the resonant rotating transformer 10, the substantially cylindrical portions of the non-magnetic base 20 are substantially hollow. Alternatively, just the substantially cylindrical portion of the non-magnetic base 20 for the primary winding is substantially hollow.

In one embodiment where the at least one of the at least two secondary winding members 201, 301 may be operably coupled in parallel or sequentially, the winding portions of at least one of the at least one secondary winding members are embedded in each other. In this embodiment, each winding portion of the primary winding member 101 and the at least two secondary winding members 201, 301 may be located on a separate non-magnetic base 20.

The inventive concept was conceived for holographic display fans but is not limited to holographic display fans. Another use case example of implementing the inventive concept suggests using the aforementioned transformer design in radars, video systems, and in other display devices.

While the inventive concept has been described above in terms of specific embodiments, it is to be understood that the inventive concept is not limited to these disclosed embodiments. Upon reading the teachings of this disclosure, many modifications and other embodiments of the inventive concept will come to mind of those skilled in the art to which this inventive concept pertains, and which are intended to be and are covered by both this disclosure and the appended claims. It is indeed intended that the scope of the inventive concept should be determined by proper interpretation and construction of the appended claims and their legal equivalents, as understood by those of skill in the art relying upon the disclosure in this specification and the attached drawings. 

What is claimed is:
 1. A resonant rotating transformer comprising: a non-magnetic base, a primary winding member being positioned on the non-magnetic base substantially between at least two secondary winding members being also positioned on the non-magnetic base, wherein the primary winding works as a stator, and wherein the resonant rotating transformer is coreless.
 2. The resonant rotating transformer of claim 1, wherein the base is a flat base supporting the transformer.
 3. The resonant rotating transformer of claim 1, wherein at least two secondary winding members are operably coupled sequentially.
 4. The resonant rotating transformer of claim 1, wherein at least two of the secondary winding members are operably coupled in parallel.
 5. The resonant rotating transformer of claim 1, having substantially one axis of symmetry.
 6. The resonant rotating transformer of claim 1, wherein the primary winding member is wrapped on a part of the non-magnetic base.
 7. The resonant rotating transformer of claim 1, wherein the at least one secondary winding member is wrapped on a part of the non-magnetic base.
 8. The resonant rotating transformer of claim 7, wherein the part of the non-magnetic base is substantially cylindrical.
 9. The resonant rotating transformer of claim 1, wherein at least one secondary winding consists of a first and a second portion of the secondary winding, wherein the first and the second portions alternate with each other in the winding.
 10. The resonant rotating transformer of claim 1, wherein the windings are implemented in a form of a strip conductor of a width equal to a height of the transformer.
 11. A resonant rotating transformer comprising: a non-magnetic base, a secondary winding member being positioned on the non-magnetic base substantially between at least two primary winding members being also positioned on the non-magnetic base, wherein the primary winding works as a stator, and wherein the resonant rotating transformer is coreless.
 12. The resonant rotating transformer of claim 11, having substantially one axis of symmetry.
 13. The resonant rotating transformer of claim 11, wherein at least one secondary winding consists of a first and a second portion of the secondary winding, wherein the first and the second portions alternate with each other in the winding.
 14. The resonant rotating transformer of claim 11, wherein the base is a flat base supporting the transformer.
 15. The resonant rotating transformer of claim 11, wherein at least two primary winding members are operably coupled sequentially.
 16. The resonant rotating transformer of claim 11, wherein at least two of the primary winding members are operably coupled in parallel.
 17. The resonant rotating transformer of claim 11, wherein the primary winding member is wrapped on a part of the non-magnetic base.
 18. The resonant rotating transformer of claim 11, wherein the windings are implemented in a form of a strip conductor of a width equal to a height of the transformer.
 19. The resonant rotating transformer of claim 11, wherein the at least one primary winding member is wrapped on a part of the non-magnetic base.
 20. The resonant rotating transformer of claim 19, wherein the part of the non-magnetic base is substantially cylindrical. 